Chronometric stamp.



No. 727,745. I PATENTED MAY 12, 1903.

P. A. E. BURDA.

GHRONOMETRIG STAMP. 7

APPLICATION FILED DBO. 29, 1902.

H0 MODEL.

4 SHEETS-SHEET N0.727,745. PATENTEDMAY12,190-3.. F. A. B. BURDA.

' CHRONOMETRIG STAMP.

APPLICATION FILED DBO. 29, 1902. v y no MODEL. SHEETS-SHEET 2.

eag 6m PATENTED MAY 12, 1903.

P. A. E. BURDA. OHRONOMETRIG STAMP.

APPLICATION FILED DBO. 29-, 1902.

4 SHEETS-SHEETI.

10 MODEL.

Patented May 12, 1903.

PATENT OFFICE.

FRANZ ADOLF EGON BURDA, OF LONDON, ENGLAND.

CHRONOMETRIC STAMP.

SPECIFICATION formingpartof Letters Patent No. 72 ,7 dated y 19, 1903- Application filed December 29, 1902. Serial No. 136,998. (No model.)

To whom it may 007266771...

Be it known that I, FRANZ ADOLF EGON BURDA, gentleman, a subject of the King of Great Britain, residing at 37.Elgin Crescent, London, W., in the county of Middlesex, England, have invented certain new and useful Improvements in and Connected with Chronometric Stamps and the Like; and I do here'- by declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention consists in improvements in and connected with chronometric stamps and the like by means of which the time minute by minute, the hour, the day of the month, and year are impressed upon paper, documents, or the like.

I prefer to actuate the apparatus by means of an electrical-control watch or clock either embodied with it or placed at a distance from it. If the control-watch is mounted, as shown in the drawings, upon the apparatus, I prefer to make the winding of the watch automatic. Upon another part of the apparatus I provide an indicator which shows the nature of the characters, figures, or letters as they change upon the type-wheels. I am also enabledby means of my improvements to adjust the position of certain type-wheels individually by hand; and a further part of my invention consists in a special device for operating the stamp from a distance and for causinga paper tape to move along automatically.

I will now proceed to describe my invention more particularly, reference being made to the accompanying drawings, in which Figure 1 is a part-sectional side elevation. Fig. 1 is a plan of automatic-winding ratchet. Fig. 2 is a front view, the front plate and dialrecording mechanism being removed. Fig. 3 shows a detail of type and transmission wheels and an impression of the type-Wheels. Fig. 4: is a side elevationshowing inking mechanism. Fig. 5 showsa detail of swinging frame. Fig. 6showsadetailofspring-toothed wheels. Fig. 7 shows a detail of dial-recording mechanism. Fig. Sshows a detailof modification.

In-thedrawings, a is an outer case. This may be cast in metal or it may be built up of the same, as may be most convenient. 'Upon the top of this outer case is a bush 1), and through this is passed a stout tube 0, which is secured in any suitable manner, as by screwing, to the movable inner frame d. Slots 6 are cut in the outer case, and with these engage pins f,' having round-cheese or other suitable heads which are screwed into distance-pieces f, riveted to frame d. \Vithin the tube 0 is mounted a stout spiral spring g. This abuts, preferably, against an internal tube 72, bushed, as at h, at its top end, and rests upon a screwed pin or pins tat the bottom end, said pins'passing through slots 6 in tube 0. The spring has the effect of maintaining the inner frame in an upper position, so as to keep the type-wheels clear except during the act of stamping. The top of tube 0 is fitted, preferably, with a stout metallic case 7c,an'd within this is mounted the control- Watch Z, employed for closing the circuit, the spindle m, through which the automatic winding takes place, passing, as shown, through the tube c and bush h of tube h. Its upper end consists of a key 11, similar to that employed for winding a Watch. The

lower part of this spindle 'm is stepped into a plate 0, secured to frame d, and on asquare p, formed upon it, is mounted the half of a sliding ratchet-clutch g, which is kept in engagement with its counterpart q by means of alight expanding spiral spring 1', the upper end of which abuts against a collar 8 on spindle m. A driving-ratchet t is fastened to the lower part of clutch q and prevented from backward rotation by pawl 23' and spring 25, which is operated by the pawl 'Lt, pivoted at v to the top end of lever w, carried by the armature 0c of the electromagnet g, which is mounted in the upper part of frame 61, as shown. The armature at of the electromagnet y is carried by a frame 2, supported by a rocking shaft l,pivoted in frame d. The armature is held off the cores of the electromagnet by a check-spring 1, (see Fig. 1,) fas- 1. The lower part of the swinging frame 2 (see Fig. 5) is stiffened by a cross-bar 5, piv

oted to which is a dragging-pawl 6, which on gages with the ratchet 7, driving the type ries four locking-pawls 9 9 9 and transmission wheels. The cross-bar 8, forming the bottom of swinging frame 2, car- 9 locks the minute-transmission wheel 21; 9, the hourtransmission Wheel 27; 9 the meridian-transmission wheel 31; 9, the day-transmission wheel 44. One limb of the swinging frame .2 is extended and terminates in a fork z. The whole of these transmission-wheels are mounted so as to turn freely on a deadspindle 14, which is bushed by means of the separate sleeves 15 of the hour and day transmission wheels at both ends in the side walls of frame d, both of which are extended so as to pass through slots 6 in the walls of outer frame a, the ends of these sleeves being fitted with screwed caps 16 16", having a milled edge 17 to enable said transmission-wheels carried thereon to be adjusted by hand when required.

Mounted upon sleeves 15 15 upon a deadspindle 14 is the main driving-ratchet 7, which is operated by the pawl 6. The sleeve 15 has also made fast to it a spur-wheel 18, with which the fork 2 normally engages and locks, the said spur wheel meshing with the minute-indicator transmission-wheel 19, which runs loose on an hour-transmissionwheel sleeve 15. Sleeve 15 also carries a fast single-toothed wheel 20, which engages once every ten impulses with the ten-minutetransmission wheel 21, loosely mounted upon the sleeve 15. The units minute type-wheel 23 is also formed in one piece or otherwise secured to sleeve 15. The counterpart 22 of the ten-minute-transmission wheel 21 engages with a spur-wheel 24, attached to the tenminutes type-wheel 25, and two-toothed spurwheel 26,driving the hou r-transmission wheel 27, fast to sleeve 15, which is fitted with the milled head. Its counterpart 28 drives spurwheel 29, to which is connected the spur 30, having one tooth and hour type-wheel 29 on its other side. The one-tooth wheel 30 engages with meridian-transmission wheel 31, whose counterpart 32 drives the spur-wheel 33, forming part of meridian type-wheel 34. Fast to this wheel 34 is a toothed wheel 35, having siX spring-teeth,which drives the units day-transmission wheel 36, its counterpart 37 driving the spur-Wheel 38, forming part of units day type-wheel 39. Also forming part of this type-wheel is a one-tooth spur'wheel 40', which engages once every ten impulses with the ten-day-transmission wheel 44. The units day-transmission wheel has a sleeve 15, which extends through a slot in the outer case and is fitted with a cap having a milled head 16*. The ten -day type wheel is mounted upon a sleeve 15 and projects through a slot in outer case a and is fitted with a cap 16 having a milled head. Parallel to the transmission-shaft, mounted as described, is a counter-shaft 46, formed in halves. The two inner ends of the separate shafts are journaled in a bracket 47, fastened to the detachable cover 48 of inner case. The

outer ends are journaled in two lugs 4.9,which may be bent around from the plate 48.

Mounted on shaft 46 is a spur-wheel 50, engaging with. spur transmission wheel 19. Spur-wheel 50 is formed with a sleeve 51, on which is a bevel-pinion 52, gearing with the bevel'wheel 53, mounted by means of asleeve 53 on the central spindle 54, which is riveted to bracket 47. The outer end of the sleeve carries the minute-hand 55, which moves over the dial56 of the indicator. Fast on the hoursleeve 15 is the spur-wheel 57, engaging with spur-wheel 58 on counter-shaft 46, carrying a sleeve upon which is mounted a bevel-pinion 59, which drives the bevel-wheel 60, having a sleeve 61, which turns on inner sleeve 68, said former sleeve 61 having a hand 62 at its outer extremity which shows the hour upon the dial. The units day-transmission-wheel sleeve 37 is fitted with a spur-wheel 63, which drives spur-wheel 64 on counter-shaft 46. A sleeve 65 on wheel 64 carries a bevel-pinion 66, which drives the bevel-wheel 67 and sleeve 68, journaled on inner sleeve 53. To the outer end of this a hand 68 is attached, showing the days upon the dial.

I provide means to prevent any derangement of the apparatus caused by pressing down the plunger when an electrical impulse is being sent. This consists of a bolt 70, moving in a guide '71, operated bya link pivoted to the top of lever. As this is pulled forward when the armature is attracted by the magnet the bolt is shot, entering slot 72 on outer case arranged for same and prevents the plunger from being forced down and touching the surface to be stamped.

The month and year type-wheels are arranged so as to be set by hand, since a change in their position is but rarely required. The

month-wheel 79 is formed with a boss 80, and

a setscrew 81 (see Fig. 1) passes through the inner ease and engages with the holes formed in the boss 80. The year type-wheels 82 83 have set-screws 81 passed through the inner case (see Figs. 1 and 4) and engage with sunken portions of their periphery between the type-faces, thus securing them immovably. To adjust the type-wheel by hand, I mount, as shown, in the inner frame a shaft 74, carrying a cam 75, so arranged as to engage with the swinging frame 2, carrying the locking-pawls 9 9 9 9. By turning this shaft by hand the locking-pawls are thrown out of gear. Corrections can now be made to the minute, hour, and day type-wheels. For minutes the cap16 on the end of sleeve 15 is turned in the direction of the main type-wheels usual rotation. For hours the cap 16 on the end of the honr-transmission-wheel sleeve'1-5 is turned. For days there are two caps 16 16, the former being mounted on the units daytransmission-wheel sleeve 15 on transmission. shaft, the latter 0n the ten-day type-wheel sleeve 15. Should, however, the minute or hour spur transmission-wheels during hand adjustment engage with the tooth er teeth on either the single or double toothed wheels and impel them forward, they would on disengagement remain out of gear and probably bear no relative position to the statein which their fellow type-wheel be left. To obviate this, I make the single, double, and six toothed wheels on the principle shown in Fig. 6, in which these isolated teeth are mounted on a metallic spring-strip, so that while they come into operation and fulfil their function when positively driving any negative or backward motion results in their being depressed and remaining stationary, the transmission spur-wheels sliding over the top.

Hinged by means of a screwed stud 84 to the outer sides of the inner case 61 (see Fig. 4) are bent levers 85, carrying at their extremities slots 86, in which is journaled the spindle 87 of inking-roller 88. This may be formed of any suitable compound or be made of a cloth-covered wood or metal cylinder. The spindle S7 rests upon an expanding-spring 89, which is secured in the slot and which keeps the spindle at the top when not in use, but allows of the roller being pressed back when passing over the face of the type-wheels. A roller-stud 90, screwed to the outer case a, engages with the tail 91 of the lever and is so mounted that it comes into contact with the lever-tail on depression of the plunger and causes the inking-roller to pass over the type-faces and be clear of the stamping plane before the finish of the stroke. It is replaced by means of the contractile spring 92, attached to the lever 85 and inner case d, as shown. The inner case is notched, as at 93, to allow the inking-roller to run home, and I provide a pad 94, attached to the back by means of a perforated zinc trough 94', into which latter ink may be placed through hole 94 and allowed to peroolate into the pad.

The operation of my invention is as follows: The control-watch being wound up, which may be elfected by rotating cam 75, and circuit made with any suitable form of electrical power through the terminals 99, an impulse is sent every minute through the electromagnets, which attract their armature 02, carrying with it the swinging frame a, actuating the driving minute ratchet-wheeland taking the locking-pawls 9 9* 9 9 out of engagement with their respective wheels, shooting the bolt 70 home in its slot and also advances the pawl a over the ratchet-wheel t. On opening the circuit contractile spring 1 with; draws the armaturem from the electromagnet, carrying with it the bolt and pawl 16, advancing thereby the ratchet watch-winding Wheel one tooth. It also advances the typewheel-driving pawl 6 one tooth and locks the type and transmission wheels by means of the fork z and locking-pawls 9 9 9" 9. By this means the type-wheels are advanced minute by minute until the hour is up, whence they actuate the hour-wheel and record the lapse of time, the hour-wheel actuating the meridian-wheel and the meridian-wheel the daywheel. As the months have an unequal number of days, I adjust the apparatus at the end of each by hand, as previously described. On depressing the plunger the inner case descends if the changing lock-bolt 70 is out of engagement, the stud engaging with theinking-lever 91, inking the face of the type. By pushing the plunger down the time is recorded upon the surface beneath the locking-pawls and fork, insuring no movement of the the type-wheels during this operation.

In Fig. 8 I have shown diagrammatically a modified form of my apparatus in which there is no plunger, same being intended to record the time of actuation upon a paper or like tape. The inner case, in which is embodied the watch, is hinged, as at 100, the ears 101 taking the place of the outer casing. The base is solid, a slot being provided for the type-wheel faces. An armature 102 is secured to this base-plate and is placed immediately over an electromagnet 103. A paper tape 104 passes beneath the type-wheel faces and is drawn forward after each descent of the timestamp by means of a rubber or other roller 105 engaging with another roller 106 and driven by means of a ratchet-wheel107, with which a pawl 108, attached to the time-stamp, engages and rotates. By this means, for instance, a night watchman or other person can record their presence or passage from a distance by completing an electrical circuit having the electromagnet in series.

I claim 1. In ohronometric stamping mechanism, the combination of an outer case and a vertically-movable inner case with a ratchetwheel type wheels and intermediate gearwheels movable with such inner casing, an electromagnet and electric-circuit connections energizing the same, a timepiece controlling the said circuit,alever provided with a pawl arranged to engage the said ratchet, the

armature of the said magnet attached to-the said lever, automatic mechanism for inking the type and means for depressing the lower I I5 frame to print. 7

means for depressing the said type-wheels to print, sleeves in which-the type-wheel shaft and transmission-shaft are journaled and which extend through the outer casing and caps on the projecting ends of the said sleeves posed shaft, spring-backed, single and doumeans for depressing the type-Wheels to print ble toothed transmission-Wheels 0n the said substantially as set forth. 1o superposed shaft, a ratchet-wheel and gear- In testimony whereof I affix my signature wheels for driving the first type-wheels, a lein presence of two Witnesses.

ver carrying a pawl which engages the said FRANZ ADOLF EGON BURDA. ratchet-Wheel, an electromagnet having its Witnesses:

armature on the said lever, a timekeeper con- FRANCIS HERON ROGERS,

trolling the circuit of the said magnet and J. PHILLIPS ORAWLEY. 

